Count the number of days between two dates, with the result also shown in weeks and months and as business days (Monday to Friday). Optionally include the end date.
Including or excluding the end date
By default the end date is not counted, so from Monday to Tuesday is 1 day — the usual way to count durations and deadlines. Turn on “include the end date” when you want every calendar day counted, such as a hotel stay or the number of days of an event.
Handy day counts
| Period | Days |
|---|---|
| One week | 7 |
| A 30-day notice period | 30 |
| One quarter | about 91 |
| A regular year | 365 |
| A leap year (e.g. 2028) | 366 |
| Business days in a year | about 260 (before holidays) |
Frequently asked questions
Does it skip public holidays?
No, business days exclude weekends only. Subtract federal holidays (there are 11) if you need working days.
How do I count down to a date?
Set the start date to today and the end date to your event — the result is the number of days to go.
Can the end date be before the start date?
Yes, the calculator still shows the gap between the two dates and notes that the end date is earlier.
Related calculators
Dates are calculated in your local calendar.
